Answer:
let x be cost of a hotdog
let y be cost of hamburger
so,
5x + 4y = 17.75 eq. 1
4x + 5y = 18.25 eq. 2
manipulate eq. 1 so solve for x:
5x = 17.75 - 4y
x = 17.75/5 - (4/5)y
x = 3.55 - (4/5)y eq. 3
substitute eq. 3 to eq. 2:
4(3.55 - (4/5)y) + 5y = 18.25
14.2 - (16/5)y + 5y = 18.25
14.2 + (9/5)y = 18.25
(9/5)y = 18.25 - 14.2
4.05= (9/5)y
y = 2.25
x = 3.55 - (4/5)(2.25)
x = 1.75
hotdog costs $1.75
hamburger costs $2.25
Step-by-step explanation:
I already have an answer, please clarify the correct answer, thx
Answer:
ok so y= 25 and x= 27. brainliest pls!
for which value will the equation have only one solution:x=10
Answer:
I think its this
Step-by-step explanation:
x=380=2632≈26.6
Find the area of this semi-circle with radius,
r
= 61cm.
Give your answer rounded to 1 DP.
Answer:
692.7cm²
Step-by-step explanation:
A = πr²/2 = 220.5 * π [cm²] ≈ 692.72 [cm²]
Kailey writes 40 words per minute. How many words does she write in
3.5 minutes?
Answer:
140
Step-by-step explanation:
3.5×40=140
.........................
Answer:
140 words
Step-by-step explanation:
You need to get from 40 words a minute to _____ words in 3.5 minutes. You get from 1 minute to 3.5 minutes by multiplying by 3.5. You then do the same thing to 40 to make it proportional.
Apply the distributive property using the greatest common factor to write an equivalent expression.
Enter your answers in the boxes.
0.3x – 2.7 =T0-0)
Step-by-step explanation:
0.3x = (0.3)(x).
2.7 = (0.3)(9).
Between the 2 terms, the GCF is 0.3.
Hence,
0.3x - 2.7
= (0.3)(x) - (0.3)(9)
= 0.3(x - 9).
Sarah was thinking of a number. Sarah doubles it and gets an answer of 4.5. What was the original number?
Answer:
2.25
Step-by-step explanation:
Just half 4.5 and you should get 2.25 which is quite easy to be honest
Answer:
2.25
Step-by-step explanation:
4/5/2=2/25
Tamu ran 30 minutes and burned 170 calories. PART A: Which equations can be used to find the average number of calories, c, burned per minute? *
Answer:
÷
Step-by-step explanation:
I would divide 30 minutes by 170 and it should give you exactly how many calories that is burn per minute .
Felicia earns $1,200 a month. The table displays her monthly budget
Answer:
No table shown
Step-by-step explanation:
Which equation is NOT written in slope-intercept form?
Answer and Explanation
__________________________________________________________
B) 2x - 5 = 2y + 14
__________________________________________________________
slope intercept form: y = mx + b
__________________________________________________________
B) 2x - 5 = 2y + 14 is the only answer choice that does not isolate y, and place all other terms on the other side; therefore, is your answer.
__________________________________________________________
Hope this helps! <3
__________________________________________________________
Joanie has two 12-inch long wood pieces and two 16-inch-long wood pieces. What is the combined length of the wood pieces?
A. 28 inches
B. 32 inches
C. 56 inches
D. 192 inches
1. In diagram below, POTU is a circle and |SR|=|ST|. Find.r.
Answer:
i think 100 is a required answer.
Please Answer the 3 questions in the picture
1.Proportional reasoning compares ratios to answer questions. We can use proportional reasoning to solve some questions directly, such as which size of laundry detergent is the cheapest per load, or what the dimensions of the model car should be.
3.The question is how many ways
There are as a many ways to solve a math problem as you can think of.(Some are shorter or easier than others.)
Essentially, an innfinite number.
sorry I have no idea other questions
Josie has 4 books and a pencil box in her backpack. Each book weighs 12.235 ounces and the pencil box weighs 8.25 ounces. How much do the contents of Josie's backpack weigh?
Answer:
57.55 ounces
Step-by-step explanation:
Given data
Each book weighs 12.235 ounces
Hence the weight of 4 books is
=12.235x4
=49.3 ounces
Each pencil weighs 8.25 ounces
Hence the weight of 4 books is
=8.25x1
=8.25ounces
Total weight is
=49.3+8.25
=57.55 ounces
SOMEONE PLEASE HELP ME WITH THIS!!!!! ITS GEOMETRY
Answer:
KG = 7 (A)
m KIH = 28 (B)
m JIH = 96 (D)
m HKI = 68 (B)
m KJI = 84 (C)
Step-by-step explanation:
Notice that the triangle HKJ is identical to HIJ. Since there are lines drawn to each other and both triangles are identical, the lines KG and GI are the same. This means that it is 7.
The triangle KGJ is identical with IGH. Using the recognise angle property, we know that angle JKI is the same as KHI. This means that it is 28.
Angle JIH is the same as angle JKH. Since JKH is 180 - (KHI or 84), we know that the angle JIH is 96.
We can find angle HKI by subtracting 96 by 28 because we know that angle HKI is the same as JIH. This gives us 96-2 8 = 68.
Angle KJI is the same as KHI which is 84. Therefore, KJI is also 84.
Triangle DEF is shown below.
The measure of angle D is 50⁰, the measure of angle E is 80⁰, and the measure of angle F is 10x . What is the value of x ?
Answer:
Step-by-step explanation:
13
A restaurant keeps eggs in a rack that has 5 layers. Each layer has 5 rows, with 5 eggs in each row. How many eggs does each 5-layer rack hold?
Answer:
The answer is 125 eggs.
The total number of eggs required will be 125.
What is an expression?The mathematical expression is the combination of numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also be used to denote the logical syntax's operation order and other properties.
Given that a restaurant keeps eggs in a rack that has 5 layers. Each layer has 5 rows, with 5 eggs in each row. The number of eggs will be calculated as:-
Number of eggs = 5 x 5 x 5
Number of eggs = 125
Therefore, the total number of eggs required will be 125.
To know more about an expression follow
https://brainly.com/question/3188652
#SPJ2
You want to go on a swamp tour. How long does it take a swamp vehicle that travels at at 3.2 miles per hour to travel across the swamp, from point Z to point Y
AND ACTUALLY ANSWER
Thanks
The time it will take a vehicle that travels at at 3.2 miles per hour to travel across the swamp, from point Z to point Y is; t = 18 minutes
We can see two main triangles from the image which are;
ΔVWX and ΔYZX
The two triangles are similar and using ratio of similar triangles, we have;
VW/WX = YZ/ZX
Plugging in the relevant values gives;
10/6 = YZ/3
Cross multiply to get;
YZ = 3 * 10/6
YZ = 5 miles
Since speed is given as 3.2 miles per hour and we know that formula for time is;
time = distance * speed
Then; time = 5 * 3.2
time = 16 hours
Read more at; https://brainly.com/question/25400011
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiihi
Answer:
HIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
Step-by-step explanation:
how are you
What is the area of the real object that the scale drawing models?
Scale factor: 1:6
Area =
15 square cm
Scale drawing
Object
O A. 90 square cm
B. 15 square cm
C. 180 square cm
O D. 540 square cm
Answer: 10 ft = 10(12) = 120 inches. Area = length x width. Area = 96(120) = 11520 sq. in. An 8 inch square = 8 x 8 = 64 sq. in. 11520 divided by 64 = 180 tiles.
Step-by-step explanation:
Answer:
its 540
Step-by-step explanation:
The area of a square is given by the formula A=s, where s is the length of the side. What is the area of the square shown?
Answer:
a^4b^2
Step-by-step explanation:
s represents one side, or a^2b
so if s^2=A and s=a^2b then A=(a^2b)^2 or a^4b^2
Daniel ran 5 kilometers in 40 minutes. Andy ran 4,550 meters in 37 minutes. Who ran faster?
PLEASE GIVE ME EXPLANATION
Answer:
Daniel
Step-by-step explanation:
Daniel ran 5000/40=500=4=125 meters in 1 minutes
Andy ran 4550/37=122.9729... some less than 123 meters in second
Daniel was faster than Andy
if triangle abc is similar to triangle edc find the value of x
Answer:
x = 15
Step-by-step explanation:
Since the triangles are similar then the ratios of corresponding sides are equal, that is
[tex]\frac{BC}{DC}[/tex] = [tex]\frac{AC}{EC}[/tex] , substitute values
[tex]\frac{3x-5}{32}[/tex] = [tex]\frac{5x-5}{56}[/tex] ( cross- multiply )
56(3x - 5) = 32(5x - 5) ← distribute and simplify both sides
168x - 280 = 160x - 160 ( subtract 160x from both sides )
8x - 280 = - 160 ( add 280 to both sides )
8x = 120 ( divide both sides by 8 )
x = 15
Expand the following:
a) x(x + 2)
b) x(2x - 5)
c) 2x(3x + 4)
d) 6x(x - 2y)
a) x²+2x
b)2x²-5x
c)6x²+8x
d)6x²-12xy
Jack's football team scored 3 more field goals (x) than touchdowns (y) in
yesterday's game. Write a linear equation that could represent this situation.
2
Answer:
Why is his name Jack? lol what about Aron or Liam...something hotter i mean he is a football player.
Step-by-step explanation:
Which mesure of central tendency represents the average data point?
A) mode
B) mean
C) median
D) range
Answer:
mean is correct option it will
Answer:
It will be B. mean
Step-by-step explanation:
Hope this helped have an amazing day!
What is the solution to the given inequality?
-2x + 4 < 12
Answer:
-4
Step-by-step explanation:
-2x +4 < 12
-2x < 12 -4
-2x < 8
x > -8/2
x > -4
Answer:
x > - 4
Step-by-step explanation:
- 2x + 4 < 12 ( subtract 4 from both sides )
- 2x < 8
Divide both sides by - 2, reversing the symbol as a result of dividing by a negative quantity.
x > - 4
Stephen and Bridget win some money and share it in the ratio 1:3. Stephen gets £11. How
much did they win in total?
Answer:
£44
Step-by-step explanation:
We have been given the ratio 1 : 3 , where 1 is stephens value and 3 is bridgets value.
We have told that stephen gets £11.
The relationship between stephens 'value' of 1 and the amount of money that he actually gets (11) is x11.
Therefore we must also x11 to Bridgets value.
11 x 3 = £33
Now, we add the two answers to find how much they won in total.
£33 + £11 = £44
hope this helps :)
solve x
4x-5 /5 = 3
Answer:
x = 1
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
4x−
5
5
=3
4x+−1=3
4x−1=3
Step 2: Add 1 to both sides.
4x−1+1=3+1
4x=4
Step 3: Divide both sides by 4.
4x
4
=
4
4
x=1
Mr. Howard entered a canoe race. He rowed 3 1/2 miles in 3/4 hour. How many miles can he row in one hour???
Answer:
9 miles per hour
Step-by-step explanation:
Gwendolyn can run the 100-meter dash in ¾ seconds. Francine’s best time is 18.65 seconds. How much faster is Gwendolyn than Francine in the 100-meter dash?
Answer:
Gwendolyn is faster than Francine by 2.9 seconds.
Step-by-step explanation:
15 3/4= 15.75
18.65- 15.75= 2.9